close

Privacy guaranteed - Your email is not shared with anyone.

Brass punch residue

Discussion in 'Gunsmithing' started by jadedragon, Mar 12, 2010.


  1. jadedragon

    jadedragon
    Expand Collapse

    Joined:
    Jun 20, 2007
    90
    1
    Location:
    California
    I bought a new brass punch set to help remove pins without damaging them but they do leave a brass smear on the pins. I tried several cleaning products to try to remove the brass smear with limited success. What should I try next?
     

    Wanna kill these ads? We can help!
  2. JohnKSa

    JohnKSa
    Expand Collapse

    Joined:
    Sep 8, 2000
    894
    1
    Location:
    DFW Area, TX
    Regular bore solvent and a toothbrush will usually take it off in my experience.
     

  3. eisman

    eisman
    Expand Collapse
    ARGH!
    CLM

    Joined:
    Jul 28, 2002
    2,579
    0
    Location:
    Moving Target
    I learned a long time ago to put a piece of masking tape on the end of a brass punch...
     
  4. PEC-Memphis

    PEC-Memphis
    Expand Collapse
    Scottish Member

    Joined:
    Oct 19, 2006
    4,970
    725
    Location:
    Doh ?
    You do realize that you should not "drive" Glock pins out (with a hammer) - they are pushed out and do not require significant force. The Glock tool is a steel pin. I use an allen wrench if I don't have a armorers tool handy.
     
    #4 PEC-Memphis, Mar 12, 2010
    Last edited: Mar 12, 2010
  5. jadedragon

    jadedragon
    Expand Collapse

    Joined:
    Jun 20, 2007
    90
    1
    Location:
    California
    Thanks Memphis. I do know that bit of Glock maintenance fact. I'm using the punches for other firearms with snug pins. I thought to ask Glock Talk members this question knowing how knowledgeable you all are. Thanks for all the replys so far.
     
  6. BBJones

    BBJones
    Expand Collapse

    Joined:
    Mar 2, 2010
    1,173
    0
    +1. I keep a big roll of blue painter's tape on my work bench that I use.

    Especially useful when trying to bang on or off some stubborn rear sights. I know, I know, I should buy one of those sight mounting devices.
     
  7. gb6491

    gb6491
    Expand Collapse

    Joined:
    Oct 3, 2007
    72
    0
    Location:
    Yuma county, Arizona
    A little pencil lead on the pin before using the brass punch will prevent the brass marks; works when driving sights on/off as well.
    Regards,
    Greg
     
  8. squirrelsniper

    squirrelsniper
    Expand Collapse

    Joined:
    Oct 26, 2006
    80
    0
    Location:
    Caneyville, KY
    Any bore solvent that is good at removing copper will also remove the brass smears, but depending on the solvent and type of finish that may not be practical. Usually some CLP and a rag will do it, though it may require a little elbow grease.
     
  9. ricklee4570

    ricklee4570
    Expand Collapse

    Joined:
    Sep 11, 2009
    1,825
    1
    Some really good tips given here!
     
  10. eisman

    eisman
    Expand Collapse
    ARGH!
    CLM

    Joined:
    Jul 28, 2002
    2,579
    0
    Location:
    Moving Target
    I never liked that as it reduces friction and can make a punch slip.
     
  11. gb6491

    gb6491
    Expand Collapse

    Joined:
    Oct 3, 2007
    72
    0
    Location:
    Yuma county, Arizona
    Hmmm,...interesting...never had it happen myself, but something to keep in mind: nothing wrong with a little extra caution. I always try to use a punch that gives the most contact area on the object being driven; larger/heavier punches seem to reduce bounce better as well.
    I do find masking tape good for protecting the surrounding areas.
    Regards,
    Greg.
     
    #11 gb6491, Mar 26, 2010
    Last edited: Mar 26, 2010
  12. luscioman

    luscioman
    Expand Collapse

    Joined:
    Mar 3, 2005
    45
    0
    Location:
    FL
    buy nylon punches instead. They are really cheap and do not leave a mark. Downside is they are not as strong as brass.